The kopkop daemon listens for encrypted, signed, and fully random-looking command packets. Only the fields essential for the packets' travel trough the Internet are filled with "sane" data. Upon reception and after a preset timeout, the daemon executes user-defined commands. This can be used to open firewalls, so you can reduce your system's attack surface by hiding certain services until you need to use them. The kopkop client creates and sends the encrypted packets, and is included. The communication is strictly unidirectional and quite minimal between the client and the server. Replay attacks are forestalled by storing and comparing monotonically increasing packet IDs on both sides.
FretBoard is the most complete PalmOS freeware reference tool for players of stringed instruments. FretBoard displays the position of notes, chords, and scales on the fretboard of virtually any stringed instrument. It supports guitar, bass, banjo, bouzouki, mandolin, violin, dulcimer, and chapman stick to name just a few of the instruments and tunings. FretBoard currently sports 70 different tunings for instuments from 4 to 14 strings.
wx12Ton helps one to work with music involving twelve-note series. In particular, it displays the 48 forms of a twelve-note series, and tests series for tonal phrases. In addition, wx12Ton allows the user to list the complete set of all twelve-note series which satisfy certain criteria.
Kraptor is a classic shoot 'em up scroller game where you must fight against tons of bad dudes. It offers high speed action with massive destruction, lots of fun, powerful weapons, and all that you always wanted in this kind of game. It features a powerful engine for 2D retro-like shooter scroller games and lots of cool features and levels.
Awesum is a graphical checksum verification utility. It is very easy to use and includes support for both MD5 and SHA checksum algorithms. Unlike many checksum verification utilities, it features a progress bar that makes working with large files (such as CD-ROM ISO images) much more bearable.